ABAP Select data from SAP table TRAPCCLIENTREC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TRAPCCLIENTREC table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to TRAPCCLIENTREC. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the TRAPCCLIENTREC table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_TRAPCCLIENTREC TYPE STANDARD TABLE OF TRAPCCLIENTREC,
      WA_TRAPCCLIENTREC TYPE TRAPCCLIENTREC,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <TRAPCCLIENTREC> TYPE TRAPCCLIENTREC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TRAPCCLIENTREC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TRAPCCLIENTREC
  INTO TABLE IT_TRAPCCLIENTREC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRAPCCLIENTREC
*  INTO TABLE @DATA(IT_TRAPCCLIENTREC2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_TRAPCCLIENTREC INDEX 1 INTO DATA(WA_TRAPCCLIENTREC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TRAPCCLIENTREC ASSIGNING <TRAPCCLIENTREC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRAPCCLIENTREC>-HEADER = 1.
<TRAPCCLIENTREC>-EYE_ANF = 1.
<TRAPCCLIENTREC>-RECTYPE = 1.
<TRAPCCLIENTREC>-TIMESTAMP1 = 1.
<TRAPCCLIENTREC>-TIMESTAMP2 = 1.

ENDLOOP.

LOOP AT IT_TRAPCCLIENTREC INTO WA_TRAPCCLIENTREC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRAPCCLIENTREC-RECLEN, sy-vline,
  WA_TRAPCCLIENTREC-DUMMY, sy-vline,
  WA_TRAPCCLIENTREC-ALIGNMENT, sy-vline,
  WA_TRAPCCLIENTREC-BODY, sy-vline,
  WA_TRAPCCLIENTREC-EYEON, sy-vline,
  WA_TRAPCCLIENTREC-RECLEN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRAPCCLIENTREC you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_TRAPCCLIENTREC TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_TRAPCCLIENTREC INTO WA_TRAPCCLIENTREC.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_TRAPCCLIENTREC_STR, 
HEADER TYPE STRING,
EYE_ANF TYPE STRING,
RECTYPE TYPE STRING,
TIMESTAMP1 TYPE STRING,
TIMESTAMP2 TYPE STRING,
RECLEN TYPE STRING,
DUMMY TYPE STRING,
ALIGNMENT TYPE STRING,
BODY TYPE STRING,
EYEON TYPE STRING,
RECLEN TYPE STRING,
RECTYPE TYPE STRING,
NEXTREC TYPE STRING,
PREVREC TYPE STRING,
VERSION TYPE STRING,
APPLICATION_ID TYPE STRING,
ACTION TYPE STRING,
CONNECTION_ID TYPE STRING,
MESSAGE_RECEIVE_NUMBER TYPE STRING,
MESSAGE_SEND_NUMBER TYPE STRING,
TIMESTAMP TYPE STRING,
CALL_TIME TYPE STRING,
EXECUTION_TIME TYPE STRING,
DATA_SEND TYPE STRING,
DATA_SEND_TIME TYPE STRING,
DATA_RECEIVE TYPE STRING,
DATA_RECEIVE_TIME TYPE STRING,
STATUS_CODE TYPE STRING,
PROGRAM_NAME TYPE STRING,
PROGRAM_LINE TYPE STRING,
MESSAGE_ID TYPE STRING,
EYEOFF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRAPCCLIENTREC_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_TRAPCCLIENTREC_STR-HEADER sy-vline 
WA_TRAPCCLIENTREC_STR-EYE_ANF sy-vline 
WA_TRAPCCLIENTREC_STR-RECTYPE sy-vline 
WA_TRAPCCLIENTREC_STR-TIMESTAMP1 sy-vline 
WA_TRAPCCLIENTREC_STR-TIMESTAMP2 sy-vline 
WA_TRAPCCLIENTREC_STR-RECLEN sy-vline 
WA_TRAPCCLIENTREC_STR-DUMMY sy-vline 
WA_TRAPCCLIENTREC_STR-ALIGNMENT sy-vline 
WA_TRAPCCLIENTREC_STR-BODY sy-vline 
WA_TRAPCCLIENTREC_STR-EYEON sy-vline 
WA_TRAPCCLIENTREC_STR-RECLEN sy-vline 
WA_TRAPCCLIENTREC_STR-RECTYPE sy-vline 
WA_TRAPCCLIENTREC_STR-NEXTREC sy-vline 
WA_TRAPCCLIENTREC_STR-PREVREC sy-vline 
WA_TRAPCCLIENTREC_STR-VERSION sy-vline 
WA_TRAPCCLIENTREC_STR-APPLICATION_ID sy-vline 
WA_TRAPCCLIENTREC_STR-ACTION sy-vline 
WA_TRAPCCLIENTREC_STR-CONNECTION_ID sy-vline 
WA_TRAPCCLIENTREC_STR-MESSAGE_RECEIVE_NUMBER sy-vline 
WA_TRAPCCLIENTREC_STR-MESSAGE_SEND_NUMBER sy-vline 
WA_TRAPCCLIENTREC_STR-TIMESTAMP sy-vline 
WA_TRAPCCLIENTREC_STR-CALL_TIME sy-vline 
WA_TRAPCCLIENTREC_STR-EXECUTION_TIME sy-vline 
WA_TRAPCCLIENTREC_STR-DATA_SEND sy-vline 
WA_TRAPCCLIENTREC_STR-DATA_SEND_TIME sy-vline 
WA_TRAPCCLIENTREC_STR-DATA_RECEIVE sy-vline 
WA_TRAPCCLIENTREC_STR-DATA_RECEIVE_TIME sy-vline 
WA_TRAPCCLIENTREC_STR-STATUS_CODE sy-vline 
WA_TRAPCCLIENTREC_STR-PROGRAM_NAME sy-vline 
WA_TRAPCCLIENTREC_STR-PROGRAM_LINE sy-vline 
WA_TRAPCCLIENTREC_STR-MESSAGE_ID sy-vline 
WA_TRAPCCLIENTREC_STR-EYEOFF sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.